Heard one report that he might have been in a spin (unrecoverable in a cirrus).
Another report that the chute was deployed, but did not come out of it's bag (IE, the rocket fired but the chute didn't open). Time will tell whether it was fired pre or post impact.
They've also had a case or two of the airspeed being too high when the chute deployed, ripping the chute off the aircraft.
There was an interesting website review by a cirrus owner, I'll see if I can find it tonight when I'm back in town (in Nome right now).